Mail, to many Rejected messages

Community Support Mail
1

My users keep getting their emails rejected but exim4

mainlog.1:2024-02-14 20:37:56 H=client(smtpclient.apple) [174.54.201.225] X=TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_128_GCM:128 CV=no SNI=mail.domain.com F=[email protected] rejected RCPT [email protected]: Rejected because 174.54.201.225 is in a black list at zen.spamhaus.org

Many of the domains (unrelated) are having the same IP addresses.

Am i missing something? And of course, this is Mail going OUT, not incoming.

2

is 174.54.201.225 your server ip?

Most likely:

is this the issue

3

You mention your ‘users’ so if your mail server is sending is from this ip, your IP’s reverse isn’t set and can’t be set since it’s owned by a cable company. If you’re running off a VPS or a dedicated server, set your reverse, SPF, DKIM and DMARC.

rDNS/PTR record for 174.54.201.225 is "c-174-54-201-225.hsd1.pa.comcast.net".

Also the IP is blacklisted on 3 lists which will prevent email from being delivered. Run you IP through here: https://www.dnsbl.info/dnsbl-list.php and you’ll see where it’s been blocked.

4

No, this IP is the IP, which is on the Receiving mail server and it is blacklisted. I’ve been rejected for about 3 mails yesterday, with different mail domains and same IP, which is strange.

5

I have DKIM, DMARC, SPF, all configured + SMTP relay. But Hestia rejects some of the Outbound emails before they reach the SMTP relay since receiving MAIL servers are on the blacklist.

6

Any update to this issue too? I have same issue like this.

7

Or use a different DNS resolver…