Having issue syncing an email server

[Wodel]

Hi,

I am in the middle of server migration and I am dealing with a shi.... mail server. The problem I am facing is at some point while syncing accounts, the source server closes the connection (some kind of a protection mechanism), so I have to redo and redo again. Is there a way to work-around this issue?

DEBUG: ...erl5/IO/Socket.pm:48: local error: IO::Socket::IP configuration failed
DEBUG: ...erl5/IO/Socket.pm:48: local error: IO::Socket::IP configuration failed
- msg Envoy&AOk-s/315 {0} S[13734930] F[\Seen] I[12-Jun-2022 13:26:05 +0100] could not be fetched: socket closed while reading data from server; Unable to connect to **IP**: socket closed while reading data from server; Unable to connect to **IP**: Unable to connect to **IP**: socket closed while reading data from server; Unable to connect to **IP**: Unable to connect to **IP**: Unable to connect to **IP**: socket closed while reading data from server; Unable to connect to **IP**: Unable to connect to **IP**: Unable to connect to **IP**: Unable to connect to **IP**: socket closed while reading data from server
- msg Envoy&AOk-s/315 skipped.
DEBUG: ...erl5/IO/Socket.pm:48: local error: IO::Socket::IP configuration failed
DEBUG: ...erl5/IO/Socket.pm:48: local error: IO::Socket::IP configuration failed
Trying command when NOT connected! at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 123.
        Mail::IMAPClient::LastError(Mail::IMAPClient=HASH(0x560853c43ff8), "NO not connected") called at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 1558
        Mail::IMAPClient::_send_line(Mail::IMAPClient=HASH(0x560853c43ff8), "103 NOOP", 0) called at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 1334
        Mail::IMAPClient::_imap_command_do(Mail::IMAPClient=HASH(0x560853c43ff8), "NOOP") called at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 1238
        Mail::IMAPClient::_imap_command(Mail::IMAPClient=HASH(0x560853c43ff8), "NOOP") called at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 604
        Mail::IMAPClient::noop(Mail::IMAPClient=HASH(0x560853c43ff8)) called at /usr/bin/imapsync line 7673
        main::reconnect_if_needed(Mail::IMAPClient=HASH(0x560853c43ff8)) called at /usr/bin/imapsync line 7618
        main::reconnect_12_if_needed(HASH(0x560852e20088)) called at /usr/bin/imapsync line 2860
        main::single_sync(HASH(0x560852e20088), HASH(0x560850fa24d8), HASH(0x560852e88bf0)) called at /usr/bin/imapsync line 1367
Trying command when NOT connected! LastError was: NO not connected at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 123.
        Mail::IMAPClient::LastError(Mail::IMAPClient=HASH(0x560853c43ff8), "Error sending '103 NOOP': NO not connected") called at /usr/share/perl5/vendor_perl/Mail/IMAPClient.pm line 1335

Regards.

[gilleslamiral]

What is the server?

You can slow down imapsync but not knowing what causes the disconnections won't get too far.

https://imapsync.lamiral.info/README ...

     --maxmessagespersecond flo : limits the average number of messages 
                                  transferred per second.

     --maxbytespersecond int : limits the average transfer rate per second.

Have a try.

[Wodel]

The server is a CPanel with dovecot, it's an external mail server. I have no control over it.

Thanks for the help, I will and report back.