0
votes
1answer
213 views

SMTP issues - unable to connect : CentOS 6.5, Postfix, Dovecot, MySQL

I'm trying to setup an email server on a CentOS system with Postfix, Dovecot and MySQL. I'm following this article for an Ubuntu system: ...
0
votes
1answer
504 views

SMTP/POP server only for internal e-mails on hosted domain

We have a domain for a web site and e-mail that's hosted off-site. (We don't have a reliable enough connection to host it ourselves.) Our shared host sometimes has SMTP problems, but never POP ...
1
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1answer
302 views

How can I configure postfix smtp per user?

I have previously used msmtp as my MDA. msmtp has a configuration file with username and password of the outgoing smtp server (eg gmail) stored in my home directory. I've recently changed ...
1
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1answer
3k views

How to change SMTP outgoing port on Centos 6.3

I have a dedicated server running Centos 6.3. My customer wants to use Microsoft Outlook to send and receive e-mails. He can connect and receive his mails but when he tries to send e-mail he can't ...
2
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2answers
501 views

Is there a way to completely disable outbound opportunistic TLS support in SendMail?

CentOS 5.x SendMail 8.14.4 An overzealous network security feature is causing TLS negotiations to fail when my Sendmail server tries to talk to external hosts. This is causing sendmail to constantly ...