This is probably simple because all mail admins must set this up, but I'm not set up mobile phone connections except through Exchange.
We have switched from Exchange to Sendmail, IMAP, procmail. I have several uses with iPhones and Android who would like to connect and get their mail and reply. What do I need to set up on the server to do this? Setting up IMAP on Android suggest port 143, and I've checked TLS. Outgoing SMTP suggests port 587 (why not 25? and I've also set TLS. I've checked 'require sign in'.
The first message I get on the Android is "Server doesn't support TLS", but it does, so not sure why on that. For now I removed the TLS setting and tried again (specifying port 25 for SMTP) and got the Android message:
Server does not support authentication.
But when connecting to sendmail I have:
[000.521] --> EHLO checktls.com
[000.546] <-- 250-mail.hprs.local Hello www3.checktls.com [22.214.171.124], pleased to meet you
250-AUTH DIGEST-MD5 CRAM-MD5
Does not the "250-AUTH" line indicate that the server accepts authentication?
Where do I go from here?