We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Sending emails with thunderbird

  • 2 replies
  • 0 have this problem
  • Last reply by mz12

mz12
mz12
more options

Hi, since yesterday trying to send emails just results in the display box "Sending message" (in German) but it never completes that. Receiving emails works fine. The SMTP entries all appear ok, I have not changed anything in terms of hard- or software. I use windows 10 and thunderbird 115. Sending email via the online interface of the service provider works fine too. This problem appears only when trying to send emails via strato.de but not with gmx.de. As far as I can see the settings are identical. Any ideas? Best regards

Hi, since yesterday trying to send emails just results in the display box "Sending message" (in German) but it never completes that. Receiving emails works fine. The SMTP entries all appear ok, I have not changed anything in terms of hard- or software. I use windows 10 and thunderbird 115. Sending email via the online interface of the service provider works fine too. This problem appears only when trying to send emails via strato.de but not with gmx.de. As far as I can see the settings are identical. Any ideas? Best regards

Chosen solution

Hi, I checked through my list of smtp server settings (I run several email accounts with TB). The solution appears to be that the entry for strato.de appears twice, once as a normal one and once as a "(standard)" one. I have no idea why this is so, but the non-standard one used STARTTLS instead of SSL/ TLS like all others. After I changed that one to SSL / TLS as well it worked again. Maybe this helps others as well. Best

Read this answer in context 👍 0

All Replies (2)

sfhowes
sfhowes
  • Top 10 Contributor
more options

Is the strato account sending on smtp.strato.de, 465, SSL/TLS, normal password, strato email address, while the gmx account sends on mail.gmx.net, 587, STARTTLS, normal password, gmx email address? Maybe the strato account is trying to send on the gmx smtp.

https://support.mozilla.org/en-US/questions/1350593

Helpful?

mz12
mz12 Question owner
more options

Chosen Solution

Hi, I checked through my list of smtp server settings (I run several email accounts with TB). The solution appears to be that the entry for strato.de appears twice, once as a normal one and once as a "(standard)" one. I have no idea why this is so, but the non-standard one used STARTTLS instead of SSL/ TLS like all others. After I changed that one to SSL / TLS as well it worked again. Maybe this helps others as well. Best

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.