Improve details for error "Mail: Mailserver response error -- 501 5.1.3 Invalid address" #2
Description
It seems MS Exchange is rather picky regarding valid E-Mail addresses:
While trying to configure the best possible addresses, I get errors like this:
[2024-04-16T11:04:09+0200] error : Cannot open a connection to the mailserver localhost:25 -- Operation now in progress
[2024-04-16T11:04:14+0200] error : Mail: Mailserver response error -- 501 5.1.3 Invalid address
[2024-04-16T11:04:14+0200] info : Adding event to the queue file /var/lib/monit/1713258254_1d20d10 for later delivery
There are a few issues with this:
- The localhost server was unavailable, obviously, but it's unclear which server said
501 5.1.3 Invalid address - More significantly, it's not clear how the address the server rejected actually looked like
- In the spool file there is no E-Mail address at all: One of the spool files looks like this:
# hexdump -C /var/lib/monit/1713258264_1c290f0
00000000 04 00 00 00 00 00 00 00 04 00 00 00 50 00 00 00 |............P...|
00000010 00 00 00 00 02 00 00 00 00 00 00 00 13 3f 1e 66 |.............?.f|
00000020 00 00 00 00 00 83 07 00 00 00 00 00 80 fd d2 01 |................|
00000030 00 00 00 00 00 00 01 01 01 00 00 00 01 01 01 01 |................|
00000040 01 01 01 01 01 00 00 00 00 00 00 00 20 b3 c0 01 |............ ...|
00000050 00 00 00 00 b0 77 c2 01 00 00 00 00 00 00 00 00 |.....w..........|
00000060 00 00 00 00 07 00 00 00 00 00 00 00 66 73 5f 74 |............fs_t|
00000070 6d 70 00 3e 00 00 00 00 00 00 00 69 6e 6f 64 65 |mp.>.......inode|
00000080 20 75 73 61 67 65 20 31 32 34 39 36 20 6d 61 74 | usage 12496 mat|
00000090 63 68 65 73 20 72 65 73 6f 75 72 63 65 20 6c 69 |ches resource li|
000000a0 6d 69 74 20 5b 69 6e 6f 64 65 20 75 73 61 67 65 |mit [inode usage|
000000b0 20 3e 20 31 30 30 30 5d 00 01 00 00 00 00 00 00 | > 1000]........|
000000c0 00 01 |..|
000000c2
Most of all I think I had fixed the bad E-Mail address back to the one that had worked before, but still no messages are sent.