1 Topic by freeda.suing

  • freeda.suing
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  • Posts: 56

Topic: Can not send to Google and Yahoo domains.

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.7 OPENLDAP edition
- Linux/BSD distribution name and version: Ubuntu 16.04.3 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

mailq:
985551961326     2431 Thu Feb  8 01:33:16  user@domain.com.ph
(connect to alt4.gmail-smtp-in.l.google.com[209.85.201.26]:25: Connection timed out)
                                         user@gmail.com

/var/log/mail/log:
Feb  8 09:37:17 mail postfix/smtp[16225]: connect to mta5.am0.yahoodns.net[98.136.102.55]:25: Connection timed out
Feb  8 09:37:47 mail postfix/smtp[16225]: connect to mta7.am0.yahoodns.net[98.137.159.26]:25: Connection timed out
Feb  8 09:38:15 mail postfix/smtpd[16239]: connect from unknown[198.199.98.246]
Feb  8 09:38:15 mail postfix/smtpd[16239]: lost connection after CONNECT from unknown[198.199.98.246]
Feb  8 09:38:15 mail postfix/smtpd[16239]: disconnect from unknown[198.199.98.246] commands=0/0
Feb  8 09:38:17 mail postfix/smtp[16225]: connect to mta6.am0.yahoodns.net[98.137.159.25]:25: Connection timed out
Feb  8 09:38:17 mail postfix/smtp[16225]: C04EF19613BC: to=<freeda_suing@yahoo.com>, relay=none, delay=150, delays=0.04/0.01/150/0, dsn=4.4.1, status=deferred (connect to mta6.am0.yahoodns.net[98.137.159.25]:25: Connection timed out)
Feb  8 09:39:58 mail postfix/smtpd[16293]: connect from keeper1.mxtoolbox.com[64.20.227.137]
Feb  8 09:40:00 mail postfix/smtpd[16293]: NOQUEUE: reject: RCPT from keeper1.mxtoolbox.com[64.20.227.137]: 454 4.7.1 <test@example.com>: Relay access denied; from=<supertool@mxtoolbox.com> to=<test@example.com> proto=ESMTP helo=<KEEPER1.mxtoolbox.com>
Feb  8 09:40:01 mail postfix/smtpd[16293]: disconnect from keeper1.mxtoolbox.com[64.20.227.137] ehlo=1 mail=1 rcpt=0/1 quit=1 commands=3/4

----

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2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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Re: Can not send to Google and Yahoo domains.

Does your ISP block port 25?

3 Reply by freeda.suing

  • freeda.suing
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  • Registered: 2014-10-13
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Re: Can not send to Google and Yahoo domains.

ZhangHuangbin wrote:

Does your ISP block port 25?

I actually have an open ticket with the to check. May I also ask if not having an rDNS will also affect the telnet results to these smtp servers? Although my rDNS is already propagating.

4 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
  • iRedMail Developers
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  • Registered: 2009-05-06
  • Posts: 30,793

Re: Can not send to Google and Yahoo domains.

freeda.suing wrote:

May I also ask if not having an rDNS will also affect the telnet results to these smtp servers?

No.

5 Reply by freeda.suing

  • freeda.suing
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  • Registered: 2014-10-13
  • Posts: 56

Re: Can not send to Google and Yahoo domains.

ZhangHuangbin wrote:
freeda.suing wrote:

May I also ask if not having an rDNS will also affect the telnet results to these smtp servers?

No.

Hi Zhang,

This issue is now resolved. Had a hunch with the ISP blocking port 25 by default. Had a conversation with them earlier and I am now able to send/receive to external DNS.

Thanks for the reply.