Email not received

When I send email from RoundCube then it is not receiving email. and my VPS provider blocks 25 port so is there any way else?

here is my: /var/log/exim4/mainlog

2024-01-28 13:11:56 TLS error on connection from localhost [] (gnutls_handshake): timed out
2024-01-28 13:12:32 TLS error on connection from localhost [] (gnutls_handshake): timed out
2024-01-28 13:13:32 TLS error on connection from localhost [] (gnutls_handshake): timed out
2024-01-28 13:17:28 1rTzt2-000koP-U5 <= [email protected] H=localhost ( [] P=esmtpa A=dovecot_login:[email protected] S=556 [email protected]
2024-01-28 13:19:38 1rTzt2-000koP-U5 []: SMTP timeout after initial connection: Connection timed out
2024-01-28 13:19:38 1rTzt2-000koP-U5 == [email protected] R=dnslookup T=remote_smtp defer (110): Connection timed out []: SMTP timeout after initial connection

If port 25 blocked then you can use smtp relay service, there are many smtp relay service provider free and paid both choose which one is suitable.

Or you ask your vps provider to open port 25 if possible.

Before that I recommend to check that your port 25 really blocked or not by using telnet command


Azure does not allow port 25. If we want it, we have to purchase a paid support plan. And is there any way to use without 25 port?

yes, as @Chrisgayle already wrote:


I got it, but I’m asking if I can use email without a 25 port.

no, mail needs to work on port 25.

As far as I know, Azure only blocks outbound on port 25 but not inbound on port 25, if that is the case, using an smtp relay as buddies told to you, could solve the issue as these smtp relays allow to connect to them over other ports. A couple of smtp relays that have a free tier (with limits to send x mails per day/month) are and (there are a few ones out there).


Thank you brother means a lot:)

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