Solved Digitalocean Debian 8 No Emails / Push Notifications / Ports Closed

Discussion in '3CX Phone System - General' started by MVpbx, Jan 11, 2017.

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  1. MVpbx

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    I've been dealing with a problem when none of emails get delivered. Correction: it looks like this happened after SP4 update. IRead all threads on the Forum, but cant find a solution.
    Problem: Clicking 'Test' button not sending any emails. No emails for Event notifications/ Missed calls/ Invitations emails sent. No iPhone push notifications. No 'Generate Support Info' email is sent.

    Brand new clean Debian 8 server install on Digitalocean. No Firewall installed.
    3CX Phone System Professional Edition.
    3CX Version - 15.0.60903.0 [SP4] - even though i don't remember installing it from 'Updates' menu.


    I've set up Settings->Email Settings Gmail SMPT exactly as per this article http://www.3cx.com/blog/docs/gmail-mail-server/
    After Initial 3CX install - i did receive event notifications and invitation emails. But No 'Test' button emails, and iPhone didn't push notifications were working.

    But recently (i suppose after SP4 update) no emails at all. I'm suspecting it's something to do with Ports or 3CX security module.
    SSH checking if ports 443, 587, 2195, 2196 are open:
    nc -vt xxx.xxx.x.xxx 443
    443 (https) : Connection refused
    587 (submission) : Connection refused
    2195 (?) : Connection refused
    2196 (?) : Connection refused

    3CX Firewall Check shows all : done

    but it doesn't check ports 443, 587, 2195, 2196

    I will appreciate your advice.
     
    #1 MVpbx, Jan 11, 2017
    Last edited: Jan 11, 2017
  2. MVpbx

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    Correction: i believe this happened right after SP4 Update, even though i don't recollect installing it from 'Updates' menu.
     
  3. MVpbx

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    Update - bug confirmed, brand new server Debian8, clean 3CX install. Emails and notifications not working.
     
  4. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    I haven't tried installing a PBX on Digital Ocean but i can tell you emails work on Debian 8 linux installations.
    Is your second install also on Digital Ocean?
    Regarding apple push, do you have the latest certificates installed from the updates section?
     
  5. MVpbx

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  6. MVpbx

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    Problem resolved. It was related to Digital Ocean blocking SMTP ports on IPv6. Article here
     
  7. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    Glad to hear issue is solved and thank you for sharing your solution
     
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