1 Topic by miles_hc

  • miles_hc
  • Member
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  • Registered: 2011-07-04
  • Posts: 21

Topic: greylisting delays over days for mails from messageslabs.com

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.4
- Linux/BSD distribution name and version: Centos 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): mysql
- Web server (Apache or Nginx): apache
- Manage mail accounts with iRedAdmin-Pro? yes
- Related log if you're reporting an issue:  --
====

Hi there,

anyone has the similar problems?

messages from messageslabs.com will be delayed over 2/3 days.
checking the maillog, the error was because messageslabs.com will switch from one
smtp host to another when greylisting is in effect, which causing again and again as
new records in greylistsing.

anyone has the similar issues? and any solution to that?

Thanks.

Miles

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2 Reply by miles_hc

  • miles_hc
  • Member
  • Offline
  • Registered: 2011-07-04
  • Posts: 21

Re: greylisting delays over days for mails from messageslabs.com

Sorry Correction: should be messagelabs.com

nslookup -q=all messagelabs.com

messagelabs.com
        primary name server = dns1.messagelabs.com
        responsible mail addr = hostmaster.messagelabs.com
        serial  = 2016052900
        refresh = 3600 (1 hour)
        retry   = 2040 (34 mins)
        expire  = 104847 (1 day 5 hours 7 mins 27 secs)
        default TTL = 3600 (1 hour)
messagelabs.com nameserver = dns2.mlabs.net
messagelabs.com nameserver = dns3.messagelabs.com
messagelabs.com nameserver = dns1.messagelabs.com
messagelabs.com nameserver = dns5.messagelabs.com
messagelabs.com nameserver = dns4.mlabs.net
messagelabs.com ??? unknown type 99 ???
messagelabs.com text =

        "v=spf1 include:spf.messagelabs.com ~all"
messagelabs.com text =

        "MS=ms81732447"
messagelabs.com MX preference = 20, mail exchanger = cluster6a.eu.messagelabs.com
messagelabs.com MX preference = 10, mail exchanger = cluster6.eu.messagelabs.com
messagelabs.com internet address = 155.64.49.54

3 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
  • iRedMail Developers
  • Offline
  • Registered: 2009-05-06
  • Posts: 30,809

Re: greylisting delays over days for mails from messageslabs.com

Please upgrade iRedAPD to the latest 1.9.1, then whitelist this domain with command below:

python /opt/iredapd/tools/spf_to_greylisting_whitelists.py --submit messagelabs.com

BTW: although it's not required to solve this issue, but it's strongly recommended to upgrade iRedMail to the latest iRedMail-0.9.5-1. Upgrade tutorials are available here:
http://www.iredmail.org/docs/iredmail.releases.html