Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Pomoc pśepytaś

Glědajśo se wobšudy pomocy. Njenapominajomy was nigda, telefonowy numer zawołaś, SMS pósłaś abo wósobinske informacije pśeraźiś. Pšosym dajśo suspektnu aktiwitu z pomocu nastajenja „Znjewužywanje k wěsći daś“ k wěsći.

Dalšne informacije

550 5.0.350 Remote server returned an error -> 500 SMTP connection violates RFC5322 2.1.1 rule of 1000 characters per line. Fix your mailer.

  • 2 wótegronje
  • 0 ma toś ten problem
  • 7 naglědow
  • Slědne wótegrono wót Robert UHRIK

more options

Hi folks. Again is here the annoying problem - cannot send messages...

Thunderbird 102.4.0 (32-bit version)

Receiving server response:

550 5.0.350 Remote server returned an error -> 500 SMTP connection violates RFC5322 2.1.1 rule of 1000 characters per line. Fix your mailer.

Is there any solution ?

Thank You.

Hi folks. Again is here the annoying problem - cannot send messages... Thunderbird 102.4.0 (32-bit version) Receiving server response: 550 5.0.350 Remote server returned an error -> 500 SMTP connection violates RFC5322 2.1.1 rule of 1000 characters per line. Fix your mailer. Is there any solution ? Thank You.

Wšykne wótegrona (2)

more options

I have TB 102.4.0 (64-bit) and I just tested sending a message with a single line of 1100 characters with no line break and it got sent successfully.

Are you using any add-ons?

more options

sorry for the long delay, was off...

since then, the problem wanished... or I have not used reply-to, but created new blank message instead to continue the conversation which caused problems...

My add-ons are - see picture...