Hi all!
Can someone guide me how to secure or rather force secure connection? I don’t know for sure if I am doing this right:
I have two listeners: on port 25 and on 465 with own SSL selected cert.
With turned-off listener on port 25 i am not receiving any emails. Shouldn’t be communication between two servers on 465 port?
Log from SMTP Receiving:
2025-10-13 23:54:14 +0200 08 flyzone SMTP-IN:00000326: [192.168.0.200:25] connection accepted from [54.215.105.38:58977]
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set remote delivery to all
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set max data size to 30720 KB
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set max received headers to 30
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Maximum recipient count set to 1000
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Wait for processing response at least 10 seconds
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: STARTTLS extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: 8BIT MIME accepted
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: BINARY DATA extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: PIPELINING extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: DSN extension denied
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set local delivery to all
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Authentication disabled
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set remote delivery to all
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set max data size to 30720 KB
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set max received headers to 30
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Maximum recipient count set to 1000
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Wait for processing response at least 10 seconds
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: STARTTLS extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: 8BIT MIME accepted
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: BINARY DATA extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: PIPELINING extension allowed
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: DSN extension denied
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Set local delivery to all
2025-10-13 23:54:15 +0200 08 flyzone SMTP-IN:00000326: Allowed authentication types: plain login cram-md5 digest-md5 gssapi
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Created new queue item with id 00378B9B
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Set DNSBL server to bl.spamcop.net
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Client IP 54.215.105.38 not found in DNSBL server bl.spamcop.net (Domain name does not exist)
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Set DNSBL server to b.barracudacentral.org
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Client IP 54.215.105.38 not found in DNSBL server b.barracudacentral.org (Domain name does not exist)
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Set DNSBL server to zen.spamhaus.org
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: Client IP 54.215.105.38 not found in DNSBL server zen.spamhaus.org (Domain name does not exist)
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: DomainKeys verification result: good
2025-10-13 23:54:16 +0200 08 flyzone SMTP-IN:00000326: DKIM verification result: good
2025-10-13 23:54:17 +0200 08 flyzone SMTP-IN:00000326: New mail <044aaa5a-baab-40e1-8961-687278b41954@www.axigen.com> received from us2.axigen.com (54.215.105.38) with envelope from <noreply@axigen.com>, recipients=1
What should be done? Is it even possible… the first line with :465 port?