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I think it is not that case.
Look to my logs:
webmail/sogo server
Aug 10 14:29:48 sogod [34771]: 147.228.9.45 "POST /SOGo/so/#sender#/Mail/0/folderDrafts/newDraft1597062270-1/send HTTP/1.1" 302 0/2755 0.014 - - 0 - 27
Aug 10 14:29:51 sogod [40666]: 147.228.9.45 "POST /SOGo/so/#sender#/Mail/0/folderDrafts/newDraft1597062270-1/send HTTP/1.1" 200 81/2755 0.414 - - 0 - 18
Aug 10 14:29:51 sogod [40627]: 147.228.9.45 "POST /SOGo/so/#sender#/Mail/0/folderDrafts/newDraft1597062270-1/send HTTP/1.1" 200 21/2755 0.371 - - 0 - 18
Aug 10 14:29:51 sogod [35512]: 147.228.9.45 "POST /SOGo/so/#sender#/Mail/0/folderDrafts/newDraft1597062270-1/send HTTP/1.1" 200 21/2755 0.359 - - 0 - 15
Aug 10 14:29:51 sogod [40546]: 147.228.9.45 "POST /SOGo/so/#sender#/Mail/0/folderDrafts/newDraft1597062270-1/send HTTP/1.1" 200 21/2755 0.365 - - 0 - 17
smtp server
Aug 10 14:29:51 fred postfix/cleanup[673]: 3EEF3756B: hold: header Received: from webmail.zcu.cz (webmail.zcu.cz [147.228.57.30])??by fred.zcu.cz (Postfix) with ESMTP id 3EEF3756B??for <#recipient#@kap.zcu.cz>; Mon, 10 Aug 2020 14:29:51 +0200 (CEST) from webmail.zcu.cz[147.228.57.30]; from=<#sender#@rek.zcu.cz> to=<#recipient#@kap.zcu.cz> proto=ESMTP helo=<webmail.zcu.cz>
Aug 10 14:29:51 fred postfix/cleanup[18964]: 5762F7570: hold: header Received: from webmail.zcu.cz (webmail.zcu.cz [147.228.57.30])??by fred.zcu.cz (Postfix) with ESMTP id 5762F7570??for <#recipient#@kap.zcu.cz>; Mon, 10 Aug 2020 14:29:51 +0200 (CEST) from webmail.zcu.cz[147.228.57.30]; from=<#sender#@rek.zcu.cz> to=<#recipient#@kap.zcu.cz> proto=ESMTP helo=<webmail.zcu.cz>
Aug 10 14:29:51 fred postfix/cleanup[3615]: 5C7696847: hold: header Received: from webmail.zcu.cz (webmail.zcu.cz [147.228.57.30])??by fred.zcu.cz (Postfix) with ESMTP id 5C7696847??for <#recipient#@kap.zcu.cz>; Mon, 10 Aug 2020 14:29:51 +0200 (CEST) from webmail.zcu.cz[147.228.57.30]; from=<#sender#@rek.zcu.cz> to=<#recipient#@kap.zcu.cz> proto=ESMTP helo=<webmail.zcu.cz>
Aug 10 14:29:51 fred postfix/cleanup[673]: BF99C684E: hold: header Received: from webmail.zcu.cz (webmail.zcu.cz [147.228.57.30])??by fred.zcu.cz (Postfix) with ESMTP id BF99C684E??for <#recipient#@kap.zcu.cz>; Mon, 10 Aug 2020 14:29:51 +0200 (CEST) from webmail.zcu.cz[147.228.57.30]; from=<#sender#@rek.zcu.cz> to=<#recipient#@kap.zcu.cz> proto=ESMTP helo=<webmail.zcu.cz>
imap server
Aug 10 14:29:50 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324186, TLS, session=<DVtaHIWssKST5Dke>
Aug 10 14:29:50 axor dovecot: imap(#sender#)<2324186><DVtaHIWssKST5Dke>: Logged out in=713 out=84027 deleted=0 expunged=0 trashed=0 hdr_count=100 hdr_bytes=200 body_count=0 body_bytes=0
Aug 10 14:29:50 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324203, TLS, session=<ZHZjHIWszKST5Dke>
Aug 10 14:29:50 axor dovecot: imap(#sender#)<2324203><ZHZjHIWszKST5Dke>: Logged out in=117 out=973 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Aug 10 14:29:51 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324223, TLS, session=<w99qHIWs2KST5Dke>
Aug 10 14:29:51 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324229, TLS, session=<9upsHIWs5KST5Dke>
Aug 10 14:29:51 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324230, TLS, session=<v0RtHIWs6KST5Dke>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324223><w99qHIWs2KST5Dke>: save: box=Sent, uid=278, msgid=<9eda-5f313d80-49-b844580@256294720>, size=3808, from=<#sender#@rek.zcu.cz>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324223><w99qHIWs2KST5Dke>: Logged out in=4181 out=2220 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324229><9upsHIWs5KST5Dke>: save: box=Sent, uid=279, msgid=<9eb3-5f313d80-8b-39bcf580@129892584>, size=3757, from=<#sender#@rek.zcu.cz>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324229><9upsHIWs5KST5Dke>: Logged out in=4073 out=1746 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324230><v0RtHIWs6KST5Dke>: save: box=Sent, uid=280, msgid=<8ab8-5f313d80-5-57a10980@145399396>, size=3756, from=<#sender#@rek.zcu.cz>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324230><v0RtHIWs6KST5Dke>: Logged out in=4007 out=1279 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Aug 10 14:29:51 axor dovecot: imap-login: Login: user=<#sender#>, method=PLAIN, rip=147.228.57.30, lip=147.228.57.20, mpid=2324245, TLS, session=<S2ZzHIWsCqWT5Dke>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324245><S2ZzHIWsCqWT5Dke>: save: box=Sent, uid=281, msgid=<9e62-5f313d80-39-16796ce0@222081511>, size=3757, from=<#sender#@rek.zcu.cz>
Aug 10 14:29:51 axor dovecot: imap(#sender#)<2324245><S2ZzHIWsCqWT5Dke>: Logged out in=4073 out=1746 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
=>
SOGo logs command for sending message at 14:29:48. It has 302 return code.
Then there are 3 seconds pause and then SOGo logs 4 command for sending the same message at 14:29:51. They have 200 return code.
smtp server logs first incoming message at 14:29:51.
imap server logs first command for saving message to Sent folder at 14:29:51.
All SOGo, smtp and imap server was not under load.
I see about 20 these cases every day, including weekend.
I could change SOGoSMTPServer to localhost when it could indicate something. |