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https://github.com/wneessen/go-mail.git
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Merge pull request #86 from wneessen/fix/85_clientsend-returns-is-one-of-the-given-messages-fails
Fix #85: Client.Send() failing for all messages if one is broken
This commit is contained in:
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commit
c571650c97
4 changed files with 224 additions and 52 deletions
52
client.go
52
client.go
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@ -463,58 +463,6 @@ func (c *Client) DialWithContext(pc context.Context) error {
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return nil
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}
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// Send sends out the mail message
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func (c *Client) Send(ml ...*Msg) error {
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if err := c.checkConn(); err != nil {
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return fmt.Errorf("failed to send mail: %w", err)
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}
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for _, m := range ml {
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if m.encoding == NoEncoding {
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if ok, _ := c.sc.Extension("8BITMIME"); !ok {
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return ErrServerNoUnencoded
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}
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}
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f, err := m.GetSender(false)
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if err != nil {
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return err
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}
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rl, err := m.GetRecipients()
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if err != nil {
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return err
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}
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if err := c.mail(f); err != nil {
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return fmt.Errorf("sending MAIL FROM command failed: %w", err)
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}
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for _, r := range rl {
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if err := c.rcpt(r); err != nil {
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return fmt.Errorf("sending RCPT TO command failed: %w", err)
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}
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}
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w, err := c.sc.Data()
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if err != nil {
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return fmt.Errorf("sending DATA command failed: %w", err)
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}
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_, err = m.WriteTo(w)
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if err != nil {
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return fmt.Errorf("sending mail content failed: %w", err)
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}
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if err := w.Close(); err != nil {
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return fmt.Errorf("failed to close DATA writer: %w", err)
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}
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if err := c.Reset(); err != nil {
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return fmt.Errorf("sending RSET command failed: %w", err)
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}
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if err := c.checkConn(); err != nil {
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return fmt.Errorf("failed to check server connection: %w", err)
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}
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}
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return nil
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}
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// Close closes the Client connection
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func (c *Client) Close() error {
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if err := c.checkConn(); err != nil {
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95
client_119.go
Normal file
95
client_119.go
Normal file
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@ -0,0 +1,95 @@
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// SPDX-FileCopyrightText: 2022 Winni Neessen <winni@neessen.dev>
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//
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// SPDX-License-Identifier: MIT
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//go:build !go1.20
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// +build !go1.20
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package mail
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import (
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"fmt"
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)
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// Send sends out the mail message
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func (c *Client) Send(ml ...*Msg) error {
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var errs []error
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if err := c.checkConn(); err != nil {
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return fmt.Errorf("failed to send mail: %w", err)
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}
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for _, m := range ml {
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if m.encoding == NoEncoding {
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if ok, _ := c.sc.Extension("8BITMIME"); !ok {
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errs = append(errs, ErrServerNoUnencoded)
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continue
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}
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}
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f, err := m.GetSender(false)
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if err != nil {
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errs = append(errs, err)
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continue
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}
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rl, err := m.GetRecipients()
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if err != nil {
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errs = append(errs, err)
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continue
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}
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if err := c.mail(f); err != nil {
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errs = append(errs, fmt.Errorf("sending MAIL FROM command failed: %w", err))
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if reserr := c.sc.Reset(); reserr != nil {
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errs = append(errs, reserr)
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}
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continue
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}
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failed := false
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for _, r := range rl {
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if err := c.rcpt(r); err != nil {
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errs = append(errs, fmt.Errorf("sending RCPT TO command failed: %w", err))
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failed = true
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}
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}
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if failed {
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if reserr := c.sc.Reset(); reserr != nil {
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errs = append(errs, reserr)
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}
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continue
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}
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w, err := c.sc.Data()
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if err != nil {
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errs = append(errs, fmt.Errorf("sending DATA command failed: %w", err))
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continue
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}
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_, err = m.WriteTo(w)
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if err != nil {
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errs = append(errs, fmt.Errorf("sending mail content failed: %w", err))
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continue
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}
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if err := w.Close(); err != nil {
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errs = append(errs, fmt.Errorf("failed to close DATA writer: %w", err))
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continue
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}
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if err := c.Reset(); err != nil {
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errs = append(errs, fmt.Errorf("sending RSET command failed: %w", err))
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continue
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}
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if err := c.checkConn(); err != nil {
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errs = append(errs, fmt.Errorf("failed to check server connection: %w", err))
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continue
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}
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}
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if len(errs) > 0 {
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errtxt := ""
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for i := range errs {
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errtxt += fmt.Sprintf("%s", errs[i])
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if i < len(errs) {
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errtxt += "\n"
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}
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}
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return fmt.Errorf("%s", errtxt)
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}
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return nil
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}
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85
client_120.go
Normal file
85
client_120.go
Normal file
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@ -0,0 +1,85 @@
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// SPDX-FileCopyrightText: 2022 Winni Neessen <winni@neessen.dev>
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//
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// SPDX-License-Identifier: MIT
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//go:build go1.20
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// +build go1.20
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package mail
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import (
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"errors"
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"fmt"
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)
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// Send sends out the mail message
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func (c *Client) Send(ml ...*Msg) (rerr error) {
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if err := c.checkConn(); err != nil {
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rerr = fmt.Errorf("failed to send mail: %w", err)
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return
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}
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for _, m := range ml {
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if m.encoding == NoEncoding {
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if ok, _ := c.sc.Extension("8BITMIME"); !ok {
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rerr = errors.Join(rerr, ErrServerNoUnencoded)
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continue
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}
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}
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f, err := m.GetSender(false)
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if err != nil {
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rerr = errors.Join(rerr, err)
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continue
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}
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rl, err := m.GetRecipients()
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if err != nil {
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rerr = errors.Join(rerr, err)
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continue
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}
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if err := c.mail(f); err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("sending MAIL FROM command failed: %w", err))
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if reserr := c.sc.Reset(); reserr != nil {
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rerr = errors.Join(rerr, reserr)
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}
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continue
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}
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failed := false
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for _, r := range rl {
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if err := c.rcpt(r); err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("sending RCPT TO command failed: %w", err))
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failed = true
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}
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}
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if failed {
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if reserr := c.sc.Reset(); reserr != nil {
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rerr = errors.Join(rerr, reserr)
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}
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continue
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}
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w, err := c.sc.Data()
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if err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("sending DATA command failed: %w", err))
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continue
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}
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_, err = m.WriteTo(w)
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if err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("sending mail content failed: %w", err))
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continue
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}
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if err := w.Close(); err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("failed to close DATA writer: %w", err))
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continue
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}
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if err := c.Reset(); err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("sending RSET command failed: %w", err))
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continue
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}
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if err := c.checkConn(); err != nil {
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rerr = errors.Join(rerr, fmt.Errorf("failed to check server connection: %w", err))
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}
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}
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return
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}
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@ -10,6 +10,7 @@ import (
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"fmt"
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"net/smtp"
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"os"
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"strings"
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"testing"
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"time"
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@ -863,6 +864,49 @@ func TestClient_DialSendCloseBrokenWithDSN(t *testing.T) {
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}
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}
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// TestClient_Send_withBrokenRecipient tests the Send() method of Client with a broken and a working recipient
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func TestClient_Send_withBrokenRecipient(t *testing.T) {
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if os.Getenv("TEST_ALLOW_SEND") == "" {
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t.Skipf("TEST_ALLOW_SEND is not set. Skipping mail sending test")
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}
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var msgs []*Msg
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rcpts := []string{"invalid@domain.tld", TestRcpt, "invalid@address.invalid"}
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for _, rcpt := range rcpts {
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m := NewMsg()
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_ = m.FromFormat("go-mail Test Mailer", os.Getenv("TEST_FROM"))
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_ = m.To(rcpt)
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m.Subject(fmt.Sprintf("This is a test mail from go-mail/v%s", VERSION))
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m.SetBulk()
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m.SetDate()
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m.SetMessageID()
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m.SetBodyString(TypeTextPlain, "This is a test mail from the go-mail library")
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msgs = append(msgs, m)
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}
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c, err := getTestConnection(true)
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if err != nil {
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t.Skipf("failed to create test client: %s. Skipping tests", err)
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}
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ctx, cfn := context.WithTimeout(context.Background(), DefaultTimeout)
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defer cfn()
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if err := c.DialWithContext(ctx); err != nil {
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t.Errorf("failed to dial to sending server: %s", err)
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}
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if err := c.Send(msgs...); err != nil {
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if !strings.Contains(err.Error(), "invalid@domain.tld") ||
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!strings.Contains(err.Error(), "invalid@address.invalid") {
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t.Errorf("sending mails to invalid addresses was supposed to fail but didn't")
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}
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if strings.Contains(err.Error(), TestRcpt) {
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t.Errorf("sending mail to valid addresses failed: %s", err)
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}
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}
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if err := c.Close(); err != nil {
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t.Errorf("failed to close client connection: %s", err)
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}
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}
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// TestClient_auth tests the Dial(), Send() and Close() method of Client with broken settings
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func TestClient_auth(t *testing.T) {
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tests := []struct {
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