There was such a problem. After updating Ububntu from 14.10 to 15.04, the Thunderbird 38.2.0 mail client stopped sending emails with attachments. Probyval, demolish. Did not help. There is a neighboring computer with Ubuntu 14 and everything works on the same account and with the same version. Letters with the text go away normally, but with attachments it hangs at 97%. Tell me where to dig. Thank.

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    Try a smaller attachment size. - VladD
  • 1kb is a lot? I also tried different types of files. Everything was fine before the upgrade. - James M
  • No, 1 kilobyte should not be a problem. Maybe lost the server settings? Try with another SMTP provider. - VladD 2:53 pm
  • I can not need this particular provider. I also note that attachments are sent via web maord. - James M
  • And you still try. Otherwise, how to localize the error? - VladD

1 answer 1

Enable SMTP logs. To do this, the environment variables must be set

export NSPR_LOG_MODULES=SMTP:4 export NSPR_LOG_FILE=/var/log/thunderbird.log # start thunderbird 

After a look at which operation stumbles.

See also: Logging (in English)

  • thanks for the answer. tell me which file to add it to? - James M
  • It is necessary to create a text file, to name, for example, tb-debug.sh to write the specified lines there (the third line to call TB itself, I do not know where it is in your file system). Then call this script sh tb-debug.sh - tutankhamun
  • By the way, I famously suggested a variant with logs. There will be a fairly large log. If you do not know what the SMTP protocol looks like, add a question with the last ten lines before the hang, we will see. - tutankhamun