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 of the message failed.

more options

Been using Thunderbird for years. Today while trying to send an e-mail I get this: "Sending of the message failed. An error occurred while sending mail. The mail server responded: See http://pobox.com/~djb/docs/smtplf.html.. Please check the message and try again."

I read the link and I have no idea what that means.

Using Win 10 and Thunderbird 102.1.0 (64-bit)

Been using Thunderbird for years. Today while trying to send an e-mail I get this: "Sending of the message failed. An error occurred while sending mail. The mail server responded: See http://pobox.com/~djb/docs/smtplf.html.. Please check the message and try again." I read the link and I have no idea what that means. Using Win 10 and Thunderbird 102.1.0 (64-bit)

Ŋuɖoɖo si wotia

I also contacted my host and this was their response:

Recently, we received several reports for outgoing mail issues following a recent AVG or Avast antivirus update. If you are using either of these applications, or any other antivirus/firewall app on your computer, please disable them for a quick test.

Since disabling your antivirus program permanently is not recommended, you may try disabling the signature in the application. Instructions are available at:

https://support.avast.com/en-us/article/antivirus-email-signature/#pc

https://support.avg.com/SupportArticleView?l=en&urlName=AVG-Antivirus-email-signature&supportType=home

Xle ŋuɖoɖo sia le goya me 👍 0

All Replies (2)

more options

I contacted my host too and this was their response:

Recently, we received several reports for outgoing mail issues following a recent AVG or Avast antivirus update. If you are using either of these applications, or any other antivirus/firewall app on your computer, please disable them for a quick test.

Since disabling your antivirus program permanently is not recommended, you may try disabling the signature in the application. Instructions are available at:

https://support.avast.com/en-us/article/antivirus-email-signature/#pc

https://support.avg.com/SupportArticleView?l=en&urlName=AVG-Antivirus-email-signature&supportType=home

Mike Matenkosky trɔe

more options

Ɖɔɖɔɖo si wotia

I also contacted my host and this was their response:

Recently, we received several reports for outgoing mail issues following a recent AVG or Avast antivirus update. If you are using either of these applications, or any other antivirus/firewall app on your computer, please disable them for a quick test.

Since disabling your antivirus program permanently is not recommended, you may try disabling the signature in the application. Instructions are available at:

https://support.avast.com/en-us/article/antivirus-email-signature/#pc

https://support.avg.com/SupportArticleView?l=en&urlName=AVG-Antivirus-email-signature&supportType=home