XF 2.0 ErrorException: Email failed... No space left on device

[brunoa]

Email deliver from my forum suddenly stopped working and the following error message is appearing on the logs. Disc is not full and I have no idea what could be causing this. There're two error messages being logged, both related to emails.

Any ideas about what could be the problem?

• ErrorException: Email to XXXX failed: [E_WARNING] mkdir(): No space left on device
• src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php:273

• Swift_TransportException: Email to XXXX failed: Connection to tcp://smtp.mailgun.org:587 Timed Out
• src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:404

* (XXXX = user's email)

 

[isuttie]

I just started experiencing this error as well. Anyone have any insights?

 

[brunoa]

@isuttie In our case, it was indeed a full hard disk, but it took us some time to find out because we had a replica of our server and forgot to check both. Good luck!