I am experince a strange problem with Mercry's authentication. It does not matter if STLS is advertised by Mercury and/or used by the clients.
Depending on the module I can authenticate or I am not able to authenticate.
Testing different clients it all comes down to that I can only authenticate using PLAIN authentication which I find quite strange. CRAM-MD5 no way to be successful.
Mercury 4.91 with:
pop3 is working
smtp session gives me "wrong username or password" even if I tick "do not use CRAM-MD5 if advertised"
tried smtp with seperate username/password pair and the pop3 login. No success
imap & smtp only with plain username possible, with & without STLS offered by Mercury and used by Thunderbird
imap & smtp only possible with plain username. Do not use STLS as it is on the same server.
Mercury C 4.7 smtp client from a different location
sending to Mercury 4.91 with CRAM-MD5 not possible
using MercuryD to pickup mail no problem
All error messages are "wrong password or username" as mentioned above.
Is this normal?
How are you authenticating, plain or CRAM_MD5 or...?
I don't know where to look anymore.
In Pegasus mail smtp I can't even choose how to authenticate. I am totaly stuck. How is pop3 authenticated, as it is working ?
Any pointers are really appreciated.