var sidebar_align = 'right';
var content_container_margin = parseInt('350px');
var sidebar_width = parseInt('330px');
When trying to send an email message from a server to another server I receive the following message:
SMTP error from remote mailer after MAIL FROM: SIZE=2412: host mydomain.com [209.51.***.***]: 451 rejected: temporarily unable to verify sender address (try again later).
Could you tell me what's the cause of this error ?
This could be if your sending domain's DNS is down.
The remote SMTP is trying to verify the sender's DNS and if it returns a time-out or lameserver this message can occur
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