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I'm having problems receiving any email from outlook.

I can send email through smtp using comcast (my isp) without a problem, but I can't receive any email using either personal pop3 configured in hmailserver or the imap from my isp.

If anyone can help, pleas read the following descriptions of my setup and what I've done to try to fix the problem:

I'm running a Windows Server 2012r2 with ISS, SMTP server installed, Hmailserver installed, PHP, Mysql, Squirrelmail and Outlook 2013. My domain is corretcly configured and running out of my server. I have A records and Mx records configured, firewall ports open for the selected ports, my ISP is Comcast

Hmailserver is configured for

SMTP: port 465 [587 also works] (25 is blocked by isp)

POP3: port 110 [995 also works] -- I've created an external POP3 account on my [email protected] IP port 110, Connection SSL/TLS]

IMAP: port 993 [143 also works]

Outlook 2013 Setup

POP3 test:

Server information Incoming mail server: mydomain.com

Outgoing mail server: smtp.comcast.net

Username:admin

password:*****

under more settings:

My outgoing server is checked

Log on: using comcast username and password

Under Advanced Pop3: port 110 and SMTP port 465 SSL encrypted connection

IMAP test:

Server information Incoming mail server: imap.comcast.net

Outgoing mail server: smtp.comcast.net

Username:comcast username

password:*****

under more settings:

My outgoing server is checked

Log on: using comcast username and password

Under Advanced IMAP: port 993 SSL and SMTP port 465 SSL encrypted connection

In Conclusion:

The test connections are positive. I can send, but I dont get any email.

When I run an Hmailserver diagnostic everyhting passes except for the smtp because it test in port 25

Telnet mydomain.com 465 or any other port returns no errors

I've been doing this all week, but no matter what I do. I can't seem to figure out what I'm doing wrong. So please, if you know what's wrong with my setup or have any idea why I can't receive mail in either imap or pop3 in outlook. Please let me know.

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    It's not quite clear to me what you're saying but if you're saying that your email server isn't receiving email from external senders then it's because of port 25 being blocked. Other email servers are going to connect to your server via port 25, not ports 465 or 587. Ports 465 and 587 are client submission ports (MSA) and aren't used by other SMTP servers (MTA) when sending email to your domain.
    – joeqwerty
    Jun 25, 2015 at 19:18
  • So what are my options? My isp: comcast actively blocks port 25. If I can send email through other ports, why can't I receive email ?
    – user3771570
    Jun 25, 2015 at 19:27
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    What are your options? Get a different ISP. Why can't you receive email through other ports? Because email servers don't send email to the MSA ports (465 and 587), they send email to the MTA port (25).
    – joeqwerty
    Jun 25, 2015 at 19:47

2 Answers 2

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If you run an nmap on the record, mail.mydomain.com is the port 143 listed as an open port ? 143 is the default imap account port. For you to receive emails, both parts need to be listed as open. Run a telnet mail. mydomain.com 110/143

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  • I receive a Ok+Pop3 when I run Telnet mydomain.com
    – user3771570
    Jun 25, 2015 at 18:59
  • So doesnt it mean that is an open port?
    – user3771570
    Jun 25, 2015 at 18:59
  • You received an OK when you telnet to the 110 ? The port 143 has to be added to Hmail under ports
    – Peter Nduati
    Jun 25, 2015 at 19:34
  • Yes, I've already tried adding both ports to hmail server, but I still can't receive an email in outlook. Everything seems to be working fine, but my email seems to not be delivered. Is comcast to blame?
    – user3771570
    Jun 25, 2015 at 19:39
  • Your outlook configuration on incoming points to mail.mydomian.com ? Think it's unlikely the standard Imap and pop3 ports for incoming are blocked. Is SSL installed? ?
    – Peter Nduati
    Jun 25, 2015 at 19:46
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do not forget about mx records so that dns resolvers could find it

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