moonfox
Member
I'm on v2.2.8 Patch 1, and was just moved to a new server. Sending through Postmark worked fine before the move now I am getting errors:
Swift_TransportException: Email to example@example.com failed: Connection could not be established with host smtp.postmarkapp.com :stream_socket_client(): Unable to connect to tcp://smtp.postmarkapp.com:587 (Connection refused) src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:261
This is what postmark support said:
...could you please let me know what version of TLS is this SMTP Client using? The issue could be related to that so we need to know this information to continue with the investigation..
Postmark supports TLSv.1.1+, sometimes a server will support TLSv1.2, but the SMTP client will have a different version of TLS hard-coded in. We've seen cases where some connections are made using TLSv1 resulting in a similar error.
My question for the forum:
Is TLS hardcoded in Xenforo or does SMTP outbound use whatever version of TLS the server has?
Host said firewall is set to allow all SMTP traffic out and I've also added postmark IPs to allow.
Swift_TransportException: Email to example@example.com failed: Connection could not be established with host smtp.postmarkapp.com :stream_socket_client(): Unable to connect to tcp://smtp.postmarkapp.com:587 (Connection refused) src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:261
This is what postmark support said:
...could you please let me know what version of TLS is this SMTP Client using? The issue could be related to that so we need to know this information to continue with the investigation..
Postmark supports TLSv.1.1+, sometimes a server will support TLSv1.2, but the SMTP client will have a different version of TLS hard-coded in. We've seen cases where some connections are made using TLSv1 resulting in a similar error.
My question for the forum:
Is TLS hardcoded in Xenforo or does SMTP outbound use whatever version of TLS the server has?
Host said firewall is set to allow all SMTP traffic out and I've also added postmark IPs to allow.
