Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Mozilla Destek’te Ara

Destek dolandırıcılığından kaçının. Mozilla sizden asla bir telefon numarasını aramanızı, mesaj göndermenizi veya kişisel bilgilerinizi paylaşmanızı istemez. Şüpheli durumları “Kötüye kullanım bildir” seçeneğini kullanarak bildirebilirsiniz.

Daha Fazlasını Öğren

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.

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  • Son yanıtı yazan: Robert UHRIK

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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.

Tüm Yanıtlar (2)

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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?

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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...