Summary

Upgrade go-mail from v0.7.1 to v0.7.2 to fix a regression that strips the display name from the From header.

Problem

When sending emails via Tencent Cloud SES, the following error occurs:

内部错误 (Failed to send test email: send failed: closing SMTP DATA writer:
554 5.0.0 Error: transaction failed. Detailed error:
##SES-response-json:{"Response":{"RequestId":"5abbd1c2-8092-401d-9980-7c8988a9b42e",
"QcloudError":{"Error":{"Code":"FailedOperation.NotAuthenticatedSender",
"Message":"操作失败。发件sender没有经过认证，无法发送。"}}}}

Tencent Cloud SES requires the From header to include a display name (e.g. "WittF-Mail" <noreply@wit.tf>). A bare address like <noreply@wit.tf> is rejected.

Root Cause

go-mail v0.7.1 introduced a regression (wneessen/go-mail#497): GetSender(false) mutates the original *mail.Address pointer by setting addr.Name = "", which strips the display name from the From header before the message body is written over SMTP.

This was fixed in v0.7.2 (wneessen/go-mail#498) by using a value copy instead of a pointer copy.

Changes

• go.mod — bump github.com/wneessen/go-mail v0.7.1 → v0.7.2
• go.sum — updated checksums