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hello Renzo,
unfortunetely re-using WiFiClientSecure client with
extern WiFiClientSecure client;does often the work but not all times. I frequently get ESP reboots, I mean “wdt reset”. These resets come during the client.connect() phase.
EMailSender::Response response; client.flush(); //be sure client is ok client.stop(); DEBUG_PRINTLN("start connect to smtp server " + (String)smtp_server + " on port " + (String)this->smtp_port ); DEBUG_PRINTLN("ESP getFreeHeap()" + (String)ESP.getFreeHeap()); if(!client.connect(this->smtp_server, this->smtp_port)) { DEBUG_PRINTLN("smtp connexion fails");smtp=smtp.gmail.com port=465 MFLN supported: no start connect to smtp server smtp.gmail.com on port 465 ESP getFreeHeap(): 27016 ets Jan 8 2013,rst cause:4, boot mode:(3,6) wdt reset load 0x4010f000, len 3424, room 16 tail 0 chksum 0x2e load 0x3fff20b8, len 40, room 8 tail 0 chksum 0x2b csum 0x2b v00073200 ~ldSometime I get an exception report but I unable to analyze/understand it:
smtp=smtp.gmail.com port=465 MFLN supported: no start connect to smtp server smtp.gmail.com on port 465 ESP getFreeHeap()26040 --------------- CUT HERE FOR EXCEPTION DECODER --------------- Soft WDT reset Exception (4): epc1=0x4023ca42 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000 >>>stack>>> ctx: sys sp: 3ffff540 end: 3fffffb0 offset: 0160 3ffff6a0: 00000000 c02fc02b c030c02c 00000000 3ffff6b0: 00003a98 0004a5e6 3fff19d4 4020b7ac 3ffff6c0: 000000db 3fffb00c 3fffa60c 4022e35c 3ffff6d0: 00000008 00000001 0001500d 00000000 3ffff6e0: 3fffab0c 4022f4b4 3fffa60c 00000000 3ffff6f0: 3fffab0c 3fff0f54 3fffa60c 3fff0f54 3ffff700: 00000000 00000001 3fff19d4 4020b8bb 3ffff710: 00000000 00000001 3fff19d4 4020baa7 3ffff720: 00000000 00014fd1 2624dd2f 018449d4 3ffff730: 00000000 00000000 00000034 00014fd1 3ffff740: 00003a98 3fff180c 3fff19d4 4020a7d7 3ffff750: 3fff45ac 0000076a 3ffe864c 4010078e 3ffff760: 4020de38 3fff00e8 3ffff780 00000000 3ffff770: 000001d1 3fff0f54 3fff19d4 4020bb49 3ffff780: 40213fb8 6c66fa8e 40213fb8 6c66fa8e 3ffff790: 3ffef9c0 3ffef9c0 3ffeff44 4020d4af 3ffff7a0: 00000000 0016001f 00000000 00000000 3ffff7b0: 40104263 00040000 00000000 3ffe9a5f 3ffff7c0: 3ffe9a60 3ffe83d0 3ffff880 4021cd44 3ffff7d0: 00000000 00000002 00000002 00000000 3ffff7e0: 00000002 00000002 3f302064 40226f3c 3ffff7f0: 00000000 00000752 3ffe864c 4010078e 3ffff800: 64e0e37a 00000000 00015180 32000000 3ffff810: 00383530 00000000 00015180 00000000 3ffff820: 00000014 3fff4594 00000000 40220199 3ffff830: 3ffff910 3ffff900 00000010 402201f8 3ffff840: 3ffff910 3ffff900 0000000c 402114d0 3ffff850: 3ffff8a4 fffffffc 000071bd 00000000 3ffff860: 0000a8c0 327071bd 00000000 3fff00e8 3ffff870: 00000024 40269e3c 00000000 4020e390 3ffff880: 746c696d 656c7069 73656420 616e6974 3ffff890: 6e6f6974 646e6120 74746120 6d686361 3ffff8a0: 00000000 0016001f 00000000 00000000 3ffff8b0: 0037003f 00000000 00000000 0034003f 3ffff8c0: 00000000 00000000 002b002f 00000000 3ffff8d0: 3ffff9b4 00000020 00000001 3ffe8634 3ffff8e0: 00004c84 00000000 00000000 3fff46d4 3ffff8f0: 3fff00e8 00000030 00000020 402114d0 3ffff900: 3ffe8a34 fffffffc 00000080 3ffff990 3ffff910: 00000001 3ffeff44 3ffff9b4 4020dcec 3ffff920: 3ffff990 00000000 00000000 4020e3fc 3ffff930: 0000004e 3ffeff44 3ffff9b4 4020dd38 3ffff940: 00000000 00000000 3ffff9d0 4020f21c 3ffff950: 3ffe8634 00000000 3ffe8648 3ffffe38 3ffff960: 00000001 00000001 402101be 00000001 3ffff970: 00000001 3ffffe38 00000000 40207b92 3ffff980: 00000000 00000000 3ffffe38 4020eec1 3ffff990: 74786574 616c702f 0a006e69 3fff4434 3ffff9a0: 000c000f 80000000 3fff46d4 004e004f 3ffff9b0: 81000000 00000000 004e004f 00000000 3ffff9c0: 00000000 00000032 00000000 40210200 3ffff9d0: 00000000 00000000 00000000 00000000 3ffff9e0: 002d002f 00000000 00000000 002c002f 3ffff9f0: 00000000 00000000 00000032 40210b60 3ffffa00: 3ffffe90 3ffe8e41 3ffffe10 4020376c 3ffffa10: 3ffffa38 3ffffa49 3ffffe18 3ffffe38 3ffffa20: 3ffef900 3ffffef0 3ffffe28 3ffffe28 3ffffa30: 3ffffb20 4020eec1 68737570 616c615f 3ffffa40: 61006d72 6d72616c 00726500 63754265 3ffffa50: 4670006b 6d725600 63610073 69740074 3ffffa60: 0072656d 00707962 0066766f 40209f96 3ffffa70: 00001388 00000000 3fff19d4 4020b7d5 3ffffa80: 3fffff00 7fc40000 00000000 00000000 3ffffa90: 00000010 00000000 0000c1ba 00000001 3ffffaa0: 00000002 fffffffc 00000000 3ffffefc 3ffffab0: 3fffff08 00000020 3fffa404 3fff0280 3ffffac0: 3ffffef0 00000000 3fff19d4 4020bbbb 3ffffad0: 00000066 3ffef9c0 3fffff38 4020851a 3ffffae0: 3ffe944a 3ffffefc 3ffe9440 3ffffef0 3ffffaf0: 7570227b 695f6873 3a22766e 6e69227b 3ffffb00: 63615f76 65776f70 223a2272 2e353739 3ffffb10: 222c2230 5f766e69 74617473 3a227375 3ffffb20: 32303120 6e69222c 72705f76 664f646f 3ffffb30: 44656854 3a227961 352e3422 69222c22 3ffffb40: 00000002 00000000 00000020 401001a4 3ffffb50: 40102505 63007d7d 00000002 401020d4 3ffffb60: 3ffea162 40105353 3ffed830 7961646f 3ffffb70: 00000001 4010452e 3ffee328 61746f74 3ffffb80: 4010499f 2e343732 66222c34 69646565 3ffffb90: 776f706e 3a227265 2c302e30 65656622 3ffffba0: 40104467 00000017 00000002 00040000 3ffffbb0: 00002200 65656d75 6772656e 303a2279 3ffffbc0: 000005e0 00000000 40104171 3ffee2e0 3ffffbd0: 0000003c 00000000 22636f73 000000fc 3ffffbe0: 0000001c 00000001 401052b9 3ffee2e0 3ffffbf0: 00000005 00000000 00000020 401001a4 3ffffc00: 3ffeda10 00000000 00000005 401020d4 3ffffc10: 3ffea165 4010536b 3ffedba0 40105c05 3ffffc20: 40102c5f 3ffedba0 3ffee2e0 401001a4 3ffffc30: 00000069 050e1b06 3ffee4c0 40102e3c 3ffffc40: 3ffeaa1c 00000000 00000000 00040000 3ffffc50: 00000069 00000000 401032f6 000000fd 3ffffc60: 00003bf8 0000077f 3ffe864c 4010078e 3ffffc70: 00000005 00000000 00000020 0000077f 3ffffc80: 3fff4654 00000005 3ffe864c 40100d42 3ffffc90: 00000020 00000020 00000014 00000020 3ffffca0: 3ffee2b0 3ffedba0 3ffee328 3fff4844 3ffffcb0: 0000000b 00000010 00000020 00000001 3ffffcc0: 00000010 00000020 3ffffdac 4020edeb 3ffffcd0: 0000000f 401047ed 00000002 401020d4 3ffffce0: 3ffea162 40105353 3ffed8d0 00000001 3ffffcf0: 00000010 00000001 3ffffdac 4020ee7f 3ffffd00: 0000001a 00000001 3ffffdac 4020f21c 3ffffd10: 3fff4844 3ffffd40 00000002 3fffc278 3ffffd20: 40104467 00000016 00000002 00000019 3ffffd30: 0000001a 3ffffda0 3ffffdac 4020f366 3ffffd40: 4010337d 00000001 3ffffda0 4020f21c 3ffffd50: 00003ec8 000007d9 3ffe864c 4010078e 3ffffd60: 30307830 2c9f0300 4000050c 3fff48fc 3ffffd70: 3ffffed8 00000020 3fff4924 40100adc 3ffffd80: 402051b8 ffffffff 3ffffda0 4020ed41 3ffffd90: 3ffffed8 ffffffff ffffffff 40205da4 3ffffda0: 00000000 001a001f 00000000 00000000 3ffffdb0: 001a001f 00000000 3ffe864c 4010078e 3ffffdc0: 3fff48f0 00000030 00000020 0000001a 3ffffdd0: 3fff46d4 00000020 3fff46d4 00000000 3ffffde0: 3ffffe40 00000000 3ffffed8 402046fa 3ffffdf0: 3ffffe04 3ffffe00 00000020 3ffffe9c 3ffffe00: 3fff4ba4 00000020 00000020 3fff0280 3ffffe10: 3fff4ba4 00000020 00000001 00000000 3ffffe20: 00004b88 3ffffa43 3ffffe18 3ffffe18 3ffffe30: 000000a0 3ffffa38 3fff4894 0021002f 3ffffe40: 80000000 3ffe8e46 3ffffa10 3ffe8e41 3ffffe50: 3fff4ba4 0000001a 3ffffe90 4020ee7f 3ffffe60: 00000000 0000001a 3ffffe90 4020eec1 3ffffe70: 00000018 3fff4ba4 3ffffe90 3fff0280 3ffffe80: 00000018 00000001 3ffef8b0 402038c3 3ffffe90: 3fff486c 001a001f 80000000 3fff4ba4 3ffffea0: 001a001f 80000000 00000000 3fff0280 3ffffeb0: 3ffef908 00000001 3fff421c 40204089 3ffffec0: 00000000 3ffef8e4 3ffef8b0 40205e20 3ffffed0: 3fffff28 00000000 00000000 001a001f 3ffffee0: 00000000 00000000 00000000 00000000 3ffffef0: 00000000 3ffe0079 00000000 00000000 3fffff00: 00000000 00000000 00000000 0022002f 3fffff10: 00000000 0000007b 3ffef8c4 4020c4f4 3fffff20: 00000000 00000001 00000000 00000000 3fffff30: 00000000 00000000 3ffef8b0 3fff0280 3fffff40: 3ffefa04 3ffef8e4 3ffef8b0 40206c22 3fffff50: 40213d24 00000000 00001388 00000001 3fffff60: 00000000 00000000 3fff4b6c 00000000 3fffff70: 3fff0b94 40209b90 0002bf20 3fff0280 3fffff80: 3ffefa04 3fff00e8 0002bf20 40206daa 3fffff90: 4020de38 3ffe8a32 3fff00e8 3fff0280 3fffffa0: 3fffdad0 00000000 3fff0254 3fff0280 <<<stack<<< --------------- CUT HERE FOR EXCEPTION DECODER --------------- ets Jan 8 2013,rst cause:4, boot mode:(3,6) wdt reset load 0x4010f000, len 3424, room 16 tail 0 chksum 0x2e load 0x3fff20b8, len 40, room 8 tail 0 chksum 0x2b csum 0x2b v00073200 ~ldI set debug mode and add these lines in EMailSender.cpp line 514
if(!client.connect(this->smtp_server, this->smtp_port)) { char buf[256]; client.getLastSSLError(buf,256); DEBUG_PRINT( "Error:" ); DEBUG_PRINTLN( buf ); response.desc = F("Could not connect to mail server"); response.code = F("2"); response.status = false; ...to get the real reason of the SMTP connexion fails. What a surprise, I got this:
“Unable to allocate memory for SSL structures and buffers.”I remember then that in the same sketch I was already using a WiFiClientSecure client for https requests. I seems using a different second one is bad.
So I have changed the EMailSender.cpp to make it re-use the existing one and it works.Bernard
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