Question
Debian - Postfix - Unable to send e-mail @yahoo
- Posted September 23, 2014
Hi, I’m French, so first excuse me for my english.
My problem is that I can not send an e-mail to @yahoo.fr.
Here is the message in log (mail.log) :
Sep 23 10:10:31 jeremydevos postfix/smtp[21221]: 93487411BA: to=<jeremy.devos@yahoo.fr>, relay=mx-eu.mail.am0.yahoodns.net[188.125.69.79]:25, delay=0.4, delays=0.01/0.04/0.13/0.22, dsn=4.7.1, status=deferred (host mx-eu.mail.am0.yahoodns.net[188.125.69.79] said: 421 4.7.1 [TS03] All messages from 178.62.55.36 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html (in reply to MAIL FROM command)).
With MXTOOLBOX everything is OK :
SMTP Banner Check OK - 178.62.55.36 resolves to jeremydevos.com
SMTP Reverse DNS Mismatch OK - Reverse DNS matches SMTP Banner
SMTP TLS OK - Supports TLS.
SMTP Connection Time 0.905 seconds - Good on Connection time
SMTP Open Relay OK - Not an open relay.
SMTP Transaction Time 3.245 seconds - Good on Transaction Time
Thank you for your help
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That looks like yahoo has permanently blacklisted your ip. At some point in time a spam server was most likely using that ip.
About the only thing you can really do is get new ip. Unless someone has an easier method the only way I can think of doing this is by:
Good luck.