I can receive, but not send email.

[fearworks]

Good day to you all,

I have tried nearly everything from every different website I can find, none resolve my issue.
I have the latest version of Sentora installed, I have created an email account and am able to receive mail through roundcube webmail.

I however send mail and it shows as sent successfully and drops it into the sent box, but upon checking mail logs and it shows as timed out and not sent, no matter what email I send to. Here's the latest: 

Code:

Oct 21 13:30:41 login postfix/smtp[17110]: 77CB23C12D5: to=<x17andrew71x@gmail.com>,
relay=none, delay=162982, delays=162890/0.06/93/0, dsn=4.4.1, status=deferred
(connect to alt2.gmail-smtp-in.l.google.com[74.125.192.26]:25: Connection timed out)

Sometimes I will instead of get Timed out, it will show Network unreachable:

Code:

Oct 21 13:30:12 login postfix/smtp[17107]: 81AF93C16AB: to=<x17andrew71x@gmail.com>,
relay=none, delay=73057, delays=72994/0.05/63/0, dsn=4.4.1, status=deferred
(connect to alt2.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is unreachable)

I've tried changing the sentora config on my panel to send through every different option and with or without smtp, etc. I have followed tutorial after tutorial as well on changing the port it is support to use.
When I do this though, i try sending new mail and it still attempts to send it through port 25. no matter what i change it to, the log says :25 every time.

Please help me get this cleared up. I will be glad to provide any other information necessary.
I've opened 25, 587, 2525, etc on my router and through Iptables.
- Andrew

---

Edit:
Here is the latest, full mail log from the start of me logging into webmail through sending the message and it trying to reach gmail:

Code:

Oct 21 14:04:13 login postfix/smtpd[18002]: connect from localhost[::1]
Oct 21 14:04:13 login postfix/smtpd[18002]: 8AF9C3C16E9: client=localhost[::1], sasl_method=LOGIN, sasl_username=support@vestraweb.com
Oct 21 14:04:13 login postfix/cleanup[18007]: 8AF9C3C16E9: message-id=<01768e1a9eb1727ce6a5f086c978a5a7@vestraweb.com>
Oct 21 14:04:13 login postfix/qmgr[17785]: 8AF9C3C16E9: from=<support@vestraweb.com>, size=1048, nrcpt=1 (queue active)
Oct 21 14:04:13 login postfix/smtpd[18002]: disconnect from localhost[::1]
Oct 21 14:04:23 login postfix/qmgr[17785]: C7F2B3C16CB: from=<support@vestraweb.com>, size=1048, nrcpt=1 (queue active)
Oct 21 14:04:46 login postfix/smtp[18008]: connect to gmail-smtp-in.l.google.com[64.233.180.27]:25: Connection timed out
Oct 21 14:04:46 login postfix/smtp[18008]: connect to gmail-smtp-in.l.google.com[2607:f8b0:4003:c0b::1b]:25: Network is unreachable
Oct 21 14:04:54 login postfix/smtp[18021]: connect to gmail-smtp-in.l.google.com[64.233.180.27]:25: Connection timed out
Oct 21 14:04:54 login postfix/smtp[18021]: connect to gmail-smtp-in.l.google.com[2607:f8b0:4003:c0b::1b]:25: Network is unreachable
Oct 21 14:04:54 login postfix/smtp[18021]: connect to alt1.gmail-smtp-in.l.google.com[2607:f8b0:4002:c03::1a]:25: Network is unreachable

Are you able to receive incoming mail from an external account (i.e. one that's not on your server), or have you only tested with other internal accounts?

You seem to be sending emails from a @vestraweb.com address, but I cannot see that this domain has any MX records set up. I don't think this is the cause of your problem, but this will lead to many other problems and I cannot understand why you would be sending from this domain but not have any MX records?

I think the most likely explanation is that port 25 is blocked on your server. You may have it open in your firewall, but that would have no effect if your ISP or server hosting company block port 25.

Without knowing the IP of your server, it's tricky to guess as to what the issue is. If you want to send it to me in a PM then I would be happy to take a look and work out what is going on.

Keith.

Edit: OK, I see an MX record now so maybe you are busy trying things out, or maybe I checked the wrong address. That's good, but as I said I don't think that's why you are having the problems you've had.