PowerMTA Support Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

PowerMTA 5.5r1 is out!!!!  Please contact support@port25.com for a license and download access.

Author Topic: Yahoo error TSSO5  (Read 209708 times)

deliman

  • Jr. Member
  • **
  • Karma: +1/-6
  • Posts: 66
Yahoo error TSSO5
« on: June 04, 2019, 10:57:23 PM »

Hi

Why yahoo see: smtp;421 4.7.0 [TSS05] Messages from x.x.x.x temporarily deferred due to user complaints - 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3326.html ?


TSS05??

Thanks!!
Logged

Maarten Oelering

  • Jr. Member
  • **
  • Karma: +13/-6
  • Posts: 58
  • Email delivery solutions and consulting
    • Postmastery
Re: Yahoo error TSSO5
« Reply #1 on: June 05, 2019, 03:11:23 AM »

This is a temporary error used to limit the traffic accepted from your IP. The exact cause is something only Yahoo knows, but it is probably reputation related. You should check the quality of the list, the content, complaint levels, and reputation of the IP. Volume spikes might be an issue.
Logged

deliman

  • Jr. Member
  • **
  • Karma: +1/-6
  • Posts: 66
Re: Yahoo error TSSO5
« Reply #2 on: June 05, 2019, 01:16:49 PM »

Thanks!!  :)
Logged