Mail won't send but Connection Doctor says smtp account OK.

Mail won't send but Connection Doctor says smtp account OK.
I can receive mail but can't send it from Mail 3.5. Same problem on a wired G5 and on a wi-fi MacBook (using the same account), so not hardware related. Worked fine 'till today - I didn't change anything in between times. Incoming mail no problem. Tried mail rebuild, keychain first aid, deleting the account, repair disk permission - doesn't help.
Mail's connection doctor says "smpt.xxxxxx - connection to server succeeded, no login required."
Anybody any ideas? Thanks, N

G5/MacBook, Mac OS X (10.5.5)

Posted on Oct 30, 2008 11:21 AM

70 replies

Jan 5, 2009 10:30 AM in response to Mick Mueck1

Mick,

Yes! If Mail and your Mac can send to in-house domain addresses but not those from other domains, then it is almost certainly an issue with the SMTP and spam guards.

Ernie

Jan 6, 2009 7:37 AM in response to Mick Mueck1

Mick,

I have sent you an email.

Ernie

Jan 6, 2009 10:33 AM in response to Mick Mueck1

Mick,

Can you disconnect your Mac, and connect a PC to the same location, and see if it can send?

Ernie

Jan 8, 2009 5:07 PM in response to Ernie Stamper

Just to post my side of things - when I got into work today everything was working. Looks like the networking guys fixed their problem. For me, this wasn't a Mac problem after all.

rminot

Level 1

9 points

Jan 18, 2009 5:20 AM in response to Mick Mueck1

Aha! So, there were something in the settings that you had to change. Is that correct? Would you be able to tell me what you changed?

Jan 18, 2009 5:45 AM in response to Mick Mueck1

Maybe I should modify my previous comment - the solution may also have been a combination of my cleaning/purging/rebuilding efforts AND the IT guys fixing something at their end.

Jan 18, 2009 9:45 PM in response to Ernie Stamper

Thanks Ernie. My e-mails were taking at least 5 seconds to send. By entering the primary and secondary DNS sever IP addresses, they are now sent instantly.

Jan 19, 2009 7:21 AM in response to rminot

What Port have you been using with the SMTP that would not send?

Ernie

rminot

Level 1

9 points

Jan 19, 2009 11:44 AM in response to Ernie Stamper

It's set to use the default ports. But I've even tried entering in the correct number 587 in the custom port field too. No luck.

Jan 19, 2009 11:50 AM in response to rminot

I thought that had been covered, but the mention of not being able to relay brought it to mind again.

Ernie

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Mail won't send but Connection Doctor says smtp account OK.