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Topic: Issue on sending emails

iRedMail Version: 0.9.5
Linux: Ubuntu 16.04 LTS, Kernel 4.9
MySQL
Nginx
Not managing with iRedAdmin-Pro.



Description:
All iRedMail elements used to work properly on my server. However, I found that it cannot send emails recently while it still can receiving.

I use IMAP and SMTP clients to manage my emails. No matter what I send, the emails just keep staying in "outbox" folder, not in "sent". I tried different clients, and I can eliminate failure on my own networking.

Since receiving function still work, here's some log when iRedMail receiving emails. When sending, no new logs was generated on iredapd.log. Email addresses are replaced with asterisks.


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2017-04-17 15:42:20 INFO [183.60.2.42] Client has not been seen before, greylisted.
2017-04-17 15:42:20 INFO [183.60.2.42] RCPT, *********@qq.com -> me@**********.com, 451 4.7.1 Intentional policy rejection, please try again later
2017-04-17 15:43:23 INFO [183.60.2.42] Client retries too soon, greylisted again.
2017-04-17 15:43:23 INFO [183.60.2.42] RCPT, *********@qq.com -> me@**********.com, 451 4.7.1 Intentional policy rejection, please try again later
2017-04-17 15:45:25 INFO [183.60.2.42] Client retries too soon, greylisted again.
2017-04-17 15:45:25 INFO [183.60.2.42] RCPT, *********@qq.com -> me@**********.com, 451 4.7.1 Intentional policy rejection, please try again later
2017-04-17 15:49:39 INFO [183.60.2.42] Client retries too soon, greylisted again.
2017-04-17 15:49:39 INFO [183.60.2.42] RCPT, *********@qq.com -> me@**********.com, 451 4.7.1 Intentional policy rejection, please try again later
2017-04-17 15:57:49 INFO [183.60.2.42] Client has passed the greylisting, accept this email.
2017-04-17 15:57:49 INFO [183.60.2.42] RCPT, *********@qq.com -> me@**********.com, DUNNO
2017-04-17 15:57:49 INFO [183.60.2.42] END-OF-MESSAGE, *********@qq.com -> me@**********.com, DUNNO
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I recently deleted all Nginx configuration files about iRedAdmin, for it is kind of annoying and I no longer need it. I don't know if that has an influence on this issue.

I'd like to provide more information to help troubleshooting if needed.

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