Search found 3 matches
- 10 Aug 2016, 17:33
- Forum: General Discussion (csf)
- Topic: CSF Blocking SMTP to Sendgrid
- Replies: 7
- Views: 13204
Re: CSF Blocking SMTP to Sendgrid
This is still occurring for us. CSF is blocking the TCP request after a short while... dropping the connection to Sendgrid. We're working with our techs on this .. but it is definitely CSF. When we restar the firewall (CSF) it work again for hours to days before being blocked again. It is blocking i...
- 03 Aug 2016, 22:59
- Forum: General Discussion (csf)
- Topic: CSF Blocking SMTP mail when its not configured to do so
- Replies: 28
- Views: 47327
Re: CSF Blocking SMTP mail when its not configured to do so
Here's an Exim_log when it happens: 2016-08-03 17:45:28 SMTP connection from [IP ADDRESS]:40062 (TCP/IP connection count = 2) 2016-08-03 17:45:28 SMTP connection from [IP ADDRESS]:40064 (TCP/IP connection count = 3) 2016-08-03 17:45:28 SMTP connection from serverhost [IP ADDRESS]:40062 lost 2016-08-...
- 26 Jul 2016, 01:25
- Forum: General Discussion (csf)
- Topic: CSF Blocking SMTP mail when its not configured to do so
- Replies: 28
- Views: 47327
Re: CSF Blocking SMTP mail when its not configured to do so
We have the exact same problem. We're using Sendgrid to send SMTP email - it works fine, then CSF blocks it from sending email. There's nothing specific in the mail logs. None of the IPs internal or external for Sendgrid seem to be blocked. When CSF is restarted .. everything works from anywhere bet...