XF 2.2 Issues with email

[btmgreg]

I've recently upgraded to the latest and greatest version of XF. Not sure what has changed, but I'm getting the following errors in regards to emails.

(I haven't changed any of the settings)

++ Starting Swift_SmtpTransport
<< 220-server.behind-the-mask.net ESMTP Exim 4.93 #2 Wed, 23 Dec 2020 16:42:38 +0000
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.

>> EHLO www.behind-the-mask.net

<< 250-server.behind-the-mask.net Hello www.behind-the-mask.net [173.82.245.185]
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP

>> STARTTLS

<< 220 TLS go ahead

and

Server error log
ErrorException: Email to greg@behind-the-mask.net failed: [E_WARNING] stream_socket_enable_crypto(): Peer certificate CN=`173-82-245-185.cprapid.com' did not match expected CN=`email-smtp.us-east-1.amazonaws.com' src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:94
Generated by: Unknown account Dec 23, 2020 at 4:02 PM
Stack trace
#0 [internal function]: XF::handlePhpError(2, '[E_WARNING] str...', '/home/behindthe...', 94, Array)
#1 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php(94): stream_socket_enable_crypto(Resource id #198, true, 57)
#2 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(348): Swift_Transport_StreamBuffer->startTLS()
#3 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(148): Swift_Transport_EsmtpTransport->doHeloCommand()
#4 src/XF/Mail/Mailer.php(286): Swift_Transport_AbstractSmtpTransport->start()
#5 src/XF/Mail/Queue.php(138): XF\Mail\Mailer->send(Object(Swift_Message), Object(Swift_SmtpTransport), Array)
#6 src/XF/Job/MailQueue.php(12): XF\Mail\Queue->run(8)
#7 src/XF/Job/Manager.php(258): XF\Job\MailQueue->run(8)
#8 src/XF/Job/Manager.php(200): XF\Job\Manager->runJobInternal(Array, 8)
#9 src/XF/Job/Manager.php(84): XF\Job\Manager->runJobEntry(Array, 8)
#10 job.php(43): XF\Job\Manager->runQueue(false, 8)
#11 {main}
Request state
array(4) {
  ["url"] => string(19) "/discussion/job.php"
  ["referrer"] => string(72) "https://www.behind-the-mask.net/discussion/admin.php?logs/server-errors/"
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(0) {
  }
}

No idea what to do. I'm unable to send any test emails.

 

[btmgreg]

For anyone that was suffering the same issue -

I believe I fixed it.

This was ENABLED in WHM

Restrict outgoing SMTP to root, exim, and mailman (FKA SMTP Tweak) [?]

Test emails now seem to work. Sorry to bother

 

[balusreekanth]

This is because of blocked TLS v1 , TLS v1.1. protocols . In WHM go to EXIM configuration manager and Allow weak SSL/TLS ciphers” from “Off” to “On” and Options for open ssl keep "+no_sslv2 +no_sslv3" . It is not recommended using weak ciphers , but still if you want to use it go ahead !