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Problems sending emails to gmail addresses

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by AgnesRM

brian219
brian219
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Since I was upgraded to Thurnderbired 91.4.1. I have been unable to send emails to gmail addresses. My emails are bounced back by gmail with this message.

<cambournetravel@gmail.com>: host gmail-smtp-in.l.google.com[66.102.1.26] said: 

   550-5.7.1 [213.246.109.88      12] Our system has detected that this
   message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam
   sent to Gmail, 550-5.7.1 this message has been blocked. Please visit
   550-5.7.1  https://support.google.com/mail/?p=UnsolicitedMessageError 550
   5.7.1  for more information. o5si1382700wrf.118 - gsmtp (in reply to end of
   DATA command)


Reporting-MTA: dns; server4.northway.net X-Postfix-Queue-ID: 965B52F0012C X-Postfix-Sender: rfc822; brian@cambourne.co.uk Arrival-Date: Thu, 6 Jan 2022 14:04:32 +0000 (GMT)

Final-Recipient: rfc822; brianrudd47@gmail.com Original-Recipient: rfc822;brianrudd47@gmail.com Action: failed Status: 5.7.1 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.1 [213.246.109.88 12] Our system has 

   detected that this message is 550-5.7.1 likely unsolicited mail. To reduce
   the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked.
   Please visit 550-5.7.1
   https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1  for
   more information. o5si1382700wrf.118 - gsmtp

Final-Recipient: rfc822; cambournetravel@gmail.com Original-Recipient: rfc822;cambournetravel@gmail.com Action: failed Status: 5.7.1 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.1 [213.246.109.88 12] Our system has 

   detected that this message is 550-5.7.1 likely unsolicited mail. To reduce
   the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked.
   Please visit 550-5.7.1
   https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1  for
   more information. o5si1382700wrf.118 - gsmtp
Since I was upgraded to Thurnderbired 91.4.1. I have been unable to send emails to gmail addresses. My emails are bounced back by gmail with this message. <cambournetravel@gmail.com>: host gmail-smtp-in.l.google.com[66.102.1.26] said: 550-5.7.1 [213.246.109.88 12] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1 for more information. o5si1382700wrf.118 - gsmtp (in reply to end of DATA command) Reporting-MTA: dns; server4.northway.net X-Postfix-Queue-ID: 965B52F0012C X-Postfix-Sender: rfc822; brian@cambourne.co.uk Arrival-Date: Thu, 6 Jan 2022 14:04:32 +0000 (GMT) Final-Recipient: rfc822; brianrudd47@gmail.com Original-Recipient: rfc822;brianrudd47@gmail.com Action: failed Status: 5.7.1 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.1 [213.246.109.88 12] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1 for more information. o5si1382700wrf.118 - gsmtp Final-Recipient: rfc822; cambournetravel@gmail.com Original-Recipient: rfc822;cambournetravel@gmail.com Action: failed Status: 5.7.1 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.1 [213.246.109.88 12] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1 for more information. o5si1382700wrf.118 - gsmtp

All Replies (1)

AgnesRM
AgnesRM
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This may not be anything to do with the Thunderbird upgrade - I know of other systems not using Thunderbird that have started getting similar bounce backs recently. Just to prove that, try sending from your webmail to a gmail address and see if the message fails. Gmail has probably tightened up their requirements. Your email provider needs to ensure that all the authentication requirements for their outgoing email are in place. See https://support.google.com/mail/answer/81126#authentication