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3 commits

Author SHA1 Message Date
8d86c3d8b2
Better test coverage for senderror.go 2023-01-02 21:55:37 +01:00
43efd6b3a8
Add missing REUSE header in senderror_test.go 2023-01-01 14:25:44 +01:00
78df991399
Proposal change for #90
Did a complete overhaul of the senderror.go.

- the list of `errors.New()` has been replaced with constant itoa error reasons as `SendErrReason`. Instead, the `Error()` method now reports the corresponding error message based on the reason.
- The `SendError` received a `Is()` method so that we can use `errors.Is()` for very specific error checking. I.e. we can check for `&SendErrors{Reason: ErrSMTPMailFrom, isTemp: true}`. This provides much more flexibility in the error checking capabilities
- A `isTemp` field has been added to the `SendError` type, indicating whether the received error is temporary and can be retried or not. Accordingly, the `*Msg` now has a `SendErrorIsTemp()` method indicating the same. The decision is based on the first 3 characters returned from the SMTP server. If the error code is within the 4xx range, the error is seen as temporary
- A test for the SendError type has been added
2023-01-01 14:20:13 +01:00