I am getting this error.

smtp;553 5.7.2 [TSS09] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See https://help.yahoo.com/kb/postmaster/SLN3436.html

My all emails are not delivering.

Please help.

The link does not work.

See if your IP address is on any blacklists here:

https://www.dnsbl.info

2 Likes

That sounds like a specific problem with the yahoo server or your IP is marked on a blocklist.

Check your IP at https://www.rblmon.com/

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